Adaptive space-time transmit diversity coding for MIMO systems

Details Adaptive space-time transmit diversity coding for MIMO systems Adaptive space-time transmit diversity coding for MIMO systems

2007-08-28

2007-08-28

Patel, Jay K. (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S299000, C375S347000

Reexamination Certificate

active

10285269

ABSTRACT:
A method for transmitting a stream of data symbols in a multiple-input/multiple-output (MIMO) wireless communications system including Nrtransmitting antennas. The stream of data symbols is first demultiplexed into M sub-streams, where M=Nr/2. Then, space-time transmit diversity encoding is applied to each sub-stream to generate a pair of transmit signals. Power is allocated dynamically to each transmit signal of each pair of transmit signals according to a corresponding feedback signal received from a receiver of the transmit signal. The feedback signal including a ratio of magnitude sums of channel coefficients for channels used for the transmit signals.

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